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23131241133 = 37111341187871
BaseRepresentation
bin10101100010101110…
…101011101010101101
32012201001111210120120
4111202232223222231
5334333044204013
614343142435153
71446133206540
oct254256535255
965631453516
1023131241133
11989aa89910
124596732ab9
132248320840
1411960d2857
15905ad6123
hex562babaad

23131241133 has 64 divisors (see below), whose sum is σ = 42419994624. Its totient is φ = 10821312000.

The previous prime is 23131241011. The next prime is 23131241143. The reversal of 23131241133 is 33114213132.

It is not a de Polignac number, because 23131241133 - 213 = 23131232941 is a prime.

It is a super-2 number, since 2×231312411332 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131241143) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29188 + ... + 217058.

It is an arithmetic number, because the mean of its divisors is an integer number (662812416).

Almost surely, 223131241133 is an apocalyptic number.

It is an amenable number.

23131241133 is a deficient number, since it is larger than the sum of its proper divisors (19288753491).

23131241133 is a wasteful number, since it uses less digits than its factorization.

23131241133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187946.

The product of its digits is 1296, while the sum is 24.

Adding to 23131241133 its reverse (33114213132), we get a palindrome (56245454265).

The spelling of 23131241133 in words is "twenty-three billion, one hundred thirty-one million, two hundred forty-one thousand, one hundred thirty-three".

Divisors: 1 3 7 11 13 21 33 39 41 77 91 123 143 231 273 287 429 451 533 861 1001 1353 1599 3003 3157 3731 5863 9471 11193 17589 41041 123123 187871 563613 1315097 2066581 2442323 3945291 6199743 7326969 7702711 14466067 17096261 23108133 26865553 43398201 51288783 53918977 80596659 84729821 100135243 161756931 188058871 254189463 300405729 564176613 593108747 700946701 1101487673 1779326241 2102840103 3304463019 7710413711 23131241133